Wanderlust World Wanderlust World Advancing and retreating glaciers during the last ice age (peak ~18,000 years ago) carved Canada's lakes. Thick ice sheets scraped the surface, creating deep valleys that filled with water upon retreat.
Canada has over two million lakes—more than any country. The Great Lakes (shared with the U.S.) are the world's largest freshwater lake group. Other major lakes: Huron, Superior, Erie, Ontario, Winnipeg.